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Message: <blockquote data-quote="Powerzone" data-source="post: 352785" data-attributes="member: 9157">Thanks for your questions.We shall look at the problem of excessive oil consumption in an objective manner based on sound technical evaluation and logic.The function of the hi-performance camshaft is basically to increase the volumetric efficiency (VE) of the engine so that more air can be inducted into the cylinders to fill them up as much as possible. With more air the fuel is automatically calibrated by the ECU to provide the correct air-fuel mixture for combustion.The extractor helps the scavenging process by syphoning away the exhaust gases during the exhaust stroke, so that more fresh air can take their place; less exhaust gases remain inside while more fresh air comes in, so better and more complete combustion, so more power output.Looking at the above processes, there is no relation to burning off engine lubrication oil, except one. The engine can now rev at much higher rpm more willingly. This may cause the driver to drive more aggressively and more often. Hence, at higher and extended engine operating rpm, more engine oil is burnt off. Bear in mind, engine oil does burn off even during normal engine operation, but at more relaxed engine rpm, less oil is consumed, and it's usually unnoticeable.The second situation where engine oil loss is accelerated is by using fully synthetic or thinner oils. This thin oil vaporises more and also by-passes the piston rings more, and so get burnt off more quickly.The third possibility is wear and tear of the pistons and their rings. This situation allows more oil to by-pass the rings and get burnt off at a higher rate than normal.So, the cam and extractor themselves do not actually cause the engine oil loss.</blockquote>

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